3 * GNU social - a federating social network
5 * Plugin to handle more kinds of image formats thanks to ImageMagick
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Mikael Nordfeldth <mmn@hethane.se>
25 * @copyright 2014 Free Software Foundation http://fsf.org
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link https://www.gnu.org/software/social/
30 if (!defined('GNUSOCIAL')) { exit(1); }
37 * Animated GIF resize support
40 * Animated GIF resize requires setting $config['thumbnail']['animated'] = true;
43 * Not even ImageMagick is very good at resizing animated GIFs.
44 * We are not infinitely fast, so resizing animated GIFs is _not_ recommended.
47 class ImageMagickPlugin extends Plugin
50 * @param ImageFile $file An ImageFile object we're getting metadata for
51 * @param array $info The response from getimagesize()
53 public function onFillImageFileMetadata(ImageFile $imagefile) {
54 if (is_null($imagefile->animated) && $imagefile->mimetype === 'image/gif') {
55 $magick = new Imagick($imagefile->filepath);
56 $magick = $magick->coalesceImages();
57 $imagefile->animated = $magick->getNumberImages()>1;
63 public function onStartResizeImageFile(ImageFile $imagefile, $outpath, array $box)
65 switch ($imagefile->mimetype) {
67 // If GIF, then only for animated gifs! (and only if we really want to resize the animation!)
68 if ($imagefile->animated && common_config('thumbnail', 'animated')) {
69 return $this->resizeImageFileAnimatedGif($imagefile, $outpath, $box);
76 protected function resizeImageFileAnimatedGif(ImageFile $imagefile, $outpath, array $box)
78 $magick = new Imagick($imagefile->filepath);
79 $magick = $magick->coalesceImages();
80 $magick->setIteratorIndex(0);
82 $magick->cropImage($box['w'], $box['h'], $box['x'], $box['y']);
83 $magick->thumbnailImage($box['width'], $box['height']);
84 $magick->setImagePage($box['width'], $box['height'], 0, 0);
85 } while ($magick->nextImage());
86 $magick = $magick->deconstructImages();
88 // $magick->writeImages($outpath, true); did not work, had to use filehandle
89 // There's been bugs for writeImages in php5-imagick before, probably now too
90 $fh = fopen($outpath, 'w+');
91 $success = $magick->writeImagesFile($fh);
98 public function onPluginVersion(&$versions)
100 $versions[] = array('name' => 'ImageMagick',
101 'version' => GNUSOCIAL_VERSION,
102 'author' => 'Mikael Nordfeldth',
103 'homepage' => 'http://gnu.io/social',
105 // TRANS: Plugin description.
106 _m('Use ImageMagick for some more image support.'));